3-DAY KETTLEBELL PROGRAM (1) Sizes: 150 × 150 / 234 × 300 / 637 × 818 / 265 × 150 / 637 × 440 / 300 × 300 / 600 × 770 / 100 × 100 / 300 × 300 / 600 × 770 / 100 × 100 / 779 × 1000